A multi-stage carbon powder recovery apparatus

Abstract

The present application relates to carbon powder recycling technical field, and disclose a kind of multi-section carbon powder recycling equipment, including recycling box, the bottom of the recycling box is equipped with elastic support, the bottom of the recycling box is equipped with vibration machine, the top of the recycling box is fixedly connected with feed shell, the left side of the feed shell is fixedly connected with motor, the output of the motor is fixedly connected with reciprocating screw rod one, the circumferential surface of the reciprocating screw rod one is fixedly connected with cross bar, the outer surface of the cross bar is fixedly connected with screening cylinder, the circumferential surface of the reciprocating screw rod one is movably connected with circular plate, the present application is processed when carbon powder, screening cylinder is rotated by motor, so that the carbon powder in the inside of screening cylinder is rotated screening, so that carbon powder can be evenly distributed and constantly rolling on screening cylinder, and fully contact with screening cylinder, so as to improve screening efficiency, a large amount of carbon powder can be processed in a short time.

Description

Technical Field

[0001] This invention relates to the field of toner recycling technology, specifically a multi-stage toner recycling device. Background Technology

[0002] In modern office and industrial printing, laser printers, copiers and other equipment are widely used. These devices consume a lot of toner during use, and improper disposal of waste toner can not only pollute the environment but also waste resources.

[0003] Patent CN214569235U discloses a toner sorting and recycling device. Its structure includes a top connecting frame, a sorter, a controller, a support platform, a receiving and placing plate, a sorting and discharging tank, and a feeding hopper. This toner sorting and recycling device, when overfilling or feeding too quickly, allows rotation of the handle of the pushing mechanism on the feeding hopper's outer shell. This rotation causes the shaft plate on the rotating shaft to rotate, allowing the rotating protrusions to push the slope plate. Thus, the slope plate, under the action of the connecting shaft, rotates around the axis of the connecting shaft. Rotating counterclockwise reduces the inclination of the ramp plate, slowing down the flow rate of the toner. By improving the equipment structure, the slope of the feed hopper can be easily adjusted during use, thereby adjusting the feed speed and preventing excessively fast feeding, which could lead to a decrease in the quality of the equipment's classification and processing, and the mixing of materials. However, this device is prone to incomplete screening when performing multi-stage screening of toner, making it difficult to ensure the uniformity of screening. Therefore, a multi-stage toner recovery device is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a multi-stage toner recovery device to address the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a multi-stage toner recycling device, including a recycling box, an elastic support installed at the bottom of the recycling box, a vibrator installed at the bottom of the recycling box, a feed shell fixedly connected to the top of the recycling box, a motor fixedly connected to the left side of the feed shell, a reciprocating screw fixedly connected to the output end of the motor, a crossbar fixedly connected to the circumferential surface of the reciprocating screw, a screening cylinder fixedly connected to the outer surface of the crossbar, and a circular plate movably connected to the circumferential surface of the reciprocating screw. During toner processing, the motor drives the screening cylinder to rotate, thereby collecting the toner inside the screening cylinder. The toner powder is rotary-screened, allowing it to be evenly distributed and continuously tumbled on the screening cylinder, ensuring full contact with the cylinder and thus improving screening efficiency. This enables the processing of large quantities of toner powder in a shorter time. A limit rod is fixedly connected to the side of the crossbar near the circular plate. A feed inlet is fixedly connected to the right inner wall of the feed shell, and a discharge outlet is fixedly connected to the left inner wall. A screen plate is fixedly connected to the inner wall of the recovery box, and a second screen plate is fixedly connected to the inner wall. A screening port is fixedly connected to the front inner wall of the recovery box. Simultaneously with the rotary screening of the feed material, the reciprocating screw rotates, driving the circular plate to move the screening cylinder... Larger pieces of toner inside are pushed to the discharge port for recycling, allowing more toner to come into contact with and pass through the screening cylinder, thereby improving overall screening efficiency and preventing excessive fine powder from being generated due to prolonged friction, which would affect the particle size distribution and quality of the toner. This ensures that the recycled toner is of more stable quality and better meets usage requirements. The inner wall of the recycling box is equipped with a scraping mechanism to improve toner recycling, and an auxiliary recycling mechanism for cleaning corners is also provided. The circumferential surface of the reciprocating screw is rotatably connected to the inner wall of the feed shell, and the circumferential surface of the circular plate contacts the inner wall of the screening cylinder. The circular plate is used to push out large pieces of carbon residue inside the screening cylinder. The circumferential surface of the limiting rod one contacts the inner wall of the circular plate, and the limiting rod one is used to limit the circular plate. The screening cylinder contacts the inner wall of the feed shell. The discharge port is used to push out larger carbon slag. The vibrator is used to drive the screen plate one and screen plate two inside the equipment to vibrate. The inner walls of the screen plate one and screen plate two are provided with screen holes of different sizes for multi-stage screening of carbon powder. The screening port is used to recover the processed carbon powder. The number of screening ports is set to three for layered discharge of carbon powder of different sizes. The inner wall of the elastic support is provided with springs, and the springs are used to buffer the equipment during operation.

[0006] Preferably, the scraping mechanism includes a second reciprocating screw, a gear fixedly connected to the circumferential surface of the second reciprocating screw, an elastic telescopic rod movably connected to the circumferential surface of the second reciprocating screw, a scraper fixedly connected to the elastic telescopic end of the elastic telescopic rod, and a toothed ring fixedly connected to the circumferential surface of the screening cylinder. While rotating and screening the toner, the screening cylinder drives the scraper to recover the toner adhering to the circumferential surface of the screening cylinder, allowing the toner to pass through the sieve holes more smoothly. Toner of different particle sizes can be screened more quickly, thereby improving the efficiency of the entire screening process, increasing the throughput per unit time, further improving the toner recovery rate, and extending the service life of the equipment. A second limiting rod is fixedly connected to the inner wall of the feed shell, a protrusion is fixedly connected to the bottom of the second limiting rod, and a cam is fixedly connected to the circumferential surface of the second reciprocating screw. This cam, while rotating and screening the screening cylinder, allows the toner to pass through the sieve holes more smoothly. Different particle sizes of toner can be screened more quickly, thus improving the efficiency of the entire screening process, increasing the throughput per unit time, further improving the toner recovery rate, and extending the service life of the equipment. While cleaning the circumferential surface, the movement of the scraper rod will generate vibration through the protrusion, preventing carbon powder from adhering to the surface of the scraper rod. The vibration can make the contact between the scraper rod and the circumferential surface of the screening cylinder tighter and more uniform, which helps the scraper to more thoroughly remove the carbon powder adhering to the circumferential surface, prevent carbon powder residue, improve cleaning efficiency and quality, and make the scraper rod move more smoothly, thereby reducing the wear of the scraper rod, extending the service life of the scraper rod, and reducing the maintenance cost of the equipment. The circumferential surface of the reciprocating screw two is rotatably connected to the inner wall of the recovery box, the circumferential surface of the gear meshes with the circumferential surface of the gear ring, the inner wall of the scraper rod contacts the circumferential surface of the screening cylinder, and the scraper rod is used to recover the carbon powder adhering to the circumferential surface of the screening cylinder. The top of the scraper rod contacts the bottom of the limiting rod two, and the limiting rod two is used to limit the scraper rod. After the scraper rod moves, it contacts the protrusion.

[0007] Preferably, the auxiliary recycling mechanism includes a sliding rod, with telescopic hinged rods hinged to its front and rear sides. A scraper is hinged to the bottom of the telescopic hinged rod. A limit plate is fixedly connected to the inner wall of the recycling box. During multi-stage screening, the cam drives the scraper to gather unscreened toner from both sides towards the center, avoiding blind spots during screening. This ensures a more uniform distribution of toner on the screen surface, allowing more toner to fully contact the screen for screening, reducing insufficient screening caused by localized toner accumulation, thereby improving screening efficiency, increasing toner recovery rate, and reducing resource waste. A trapezoidal plate is slidably connected to the inner wall of the screening port, with a baffle fixedly connected to the rear side of the trapezoidal plate. During gathering, the scraper drives the baffle to move, achieving intermittent discharge. This intermittent discharge allows... The toner has sufficient time to be fully screened in the screening equipment, preventing some toner from being discharged before screening is complete. This allows the equipment to better adapt to different working conditions and improves its adaptability and flexibility. The sliding rod is slidably connected to the inner wall of the recycling box via a spring. The top of the sliding rod contacts the circumferential surface of the cam. The sliding rod contacts the inner wall of screen plate one and screen plate two. The scraper contacts the tops of screen plate one and screen plate two respectively, and is used to push the toner from both sides towards the middle. The scraper contacts the inner wall of the recycling box. The bottom of the limiting plate contacts the top of the scraper, and is used to limit the scraper. The baffle is slidably connected to the inner wall of the recycling box via a spring. The bottom of the trapezoidal plate contacts the top of the scraper.

[0008] The present invention, by adopting the above technical solution, can bring the following beneficial effects: 1. This multi-stage toner recycling equipment, through the coordinated operation of a recycling box, elastic support, vibrator, feed shell, motor, reciprocating screw one, cross bar, screening cylinder, discharge port, circular push plate, limit rod one, screen plate one, screen plate two, screening port, and feed port, achieves the following: During toner processing, the motor drives the screening cylinder to rotate, thereby rotating and screening the toner inside the screening cylinder. This ensures that the toner is evenly distributed and continuously tumbles on the screening cylinder, making full contact with it and improving screening efficiency. It can process large amounts of toner in a short time. While the feed is being rotated and screened, the reciprocating screw one rotates, driving the circular plate to push larger toner blocks inside the screening cylinder to the discharge port for recycling. This allows more toner to come into contact with the screening cylinder and pass through, thereby improving overall screening efficiency and preventing excessive fine powder from being generated due to prolonged friction, which would affect the particle size distribution and quality of the toner. This ensures that the quality of the recycled toner is more stable and meets usage requirements.

[0009] 2. This multi-stage toner recovery equipment, through the coordinated operation of a gear ring, gears, reciprocating screw, elastic telescopic rod, and scraper, simultaneously rotates and screens the toner. The screening cylinder drives the scraper to recover the toner adhering to the circumference of the screening cylinder, allowing the toner to pass through the screen holes more smoothly. Toner of different particle sizes can be screened more quickly, thereby improving the efficiency of the entire screening process, increasing the throughput per unit time, further improving the toner recovery rate, and extending the service life of the equipment.

[0010] 3. This multi-stage toner recovery equipment, through the coordinated operation of the limiting rod, the protrusion, and the cam, cleans the circumferential surface of the screening cylinder while the scraper moves, generating vibration through the protrusion. This prevents toner from adhering to the surface of the scraper. The vibration makes the contact between the scraper and the circumferential surface of the screening cylinder tighter and more uniform, helping the scraper to more thoroughly remove the toner adhering to the circumferential surface, preventing toner residue, improving cleaning efficiency and quality, and making the scraper move more smoothly, thereby reducing the wear of the scraper, extending its service life, and reducing the maintenance cost of the equipment.

[0011] 4. This multi-stage toner recovery equipment, through the coordinated operation of the sliding rod, the hinged rod, the push scraper, and the limiting plate, performs multi-stage screening while simultaneously using a cam to drive the push scraper to gather the unscreened toner from both sides towards the center. This avoids blind spots during screening, allowing the toner to be distributed more evenly on the screen surface. More toner can fully contact the screen for screening, reducing incomplete screening caused by localized toner accumulation, thereby improving screening efficiency, increasing toner recovery rate, and reducing resource waste.

[0012] 5. This multi-stage toner recycling equipment, through the coordinated operation of trapezoidal plates and baffles, achieves intermittent discharge by pushing scrapers to move the baffles while gathering the toner. Intermittent discharge allows the toner to have sufficient time to be fully screened in the screening equipment, preventing some toner from being discharged before it has been screened. This makes the equipment better adaptable to different working conditions and improves its adaptability and flexibility. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the screening cylinder structure of the present invention; Figure 3 This is a schematic diagram of the circular plate structure of the present invention; Figure 4 This is a schematic diagram of the scraper structure of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of the structure at point A in the middle; Figure 6This is a schematic diagram of the scraper structure of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of the structure at point B in the middle; Figure 8 For the present invention Figure 6 Enlarged view of the structure at point C.

[0014] In the diagram: 1. Recycling bin; 2. Elastic support; 3. Vibrator; 4. Feeding shell; 5. Scraping mechanism; 51. Gear ring; 52. Gear; 53. Reciprocating screw two; 54. Elastic telescopic rod; 55. Scraper; 56. Limiting rod two; 57. Protrusion; 58. Cam; 6. Auxiliary recycling mechanism; 61. Sliding rod; 62. Telescopic hinge rod; 63. Push scraper; 64. Limiting plate; 65. Trapezoidal plate; 66. Baffle; 7. Motor; 8. Reciprocating screw one; 9. Cross rod; 10. Screening cylinder; 11. Discharge port; 12. Circular plate; 13. Limiting rod one; 14. Screen plate one; 15. Screen plate two; 16. Screening port; 17. Feeding port. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please see Figures 1-8 One embodiment of the present invention is: a multi-stage toner recycling device, including a recycling box 1, an elastic support 2 installed at the bottom of the recycling box 1, a vibrator 3 installed at the bottom of the recycling box 1, a feed shell 4 fixedly connected to the top of the recycling box 1, a motor 7 fixedly connected to the left side of the feed shell 4, a reciprocating screw 8 fixedly connected to the output end of the motor 7, a cross bar 9 fixedly connected to the circumferential surface of the reciprocating screw 8, a screening cylinder 10 fixedly connected to the outer surface of the cross bar 9, and a circular plate 12 movably connected to the circumferential surface of the reciprocating screw 8. During multi-stage processing of toner, the toner to be processed is placed into the feed inlet 17 by machinery or personnel. The toner enters the screening cylinder 10 through the feed inlet 17. At this time, the motor 7 is started by the personnel. The motor 7 drives the reciprocating screw 8 to rotate through the output end. The reciprocating screw 8 drives the screening cylinder 10 to rotate, thereby rotating and screening the toner inside the screening cylinder 10. This ensures that the toner is evenly distributed and continuously tumbles on the screening cylinder 10, making full contact with the screening cylinder 10, thus improving the screening efficiency. The high efficiency allows for the processing of large quantities of toner in a short time. After the feed is screened, the toner is screened through the sieve holes of the screening cylinder 10 and then enters the recycling box 1. At this time, the vibrator 3 is started by the staff. The vibrator 3 drives the equipment to screen, which causes the first sieve plate 14 to screen the toner at the top. The screened toner is then shaken off to the top of the second sieve plate 15 for screening again. Finally, the discharged toner is screened to the bottom of the recycling box 1. At this time, toner of different sizes in each layer will be discharged through the screening port 16. A limit rod 13 is fixedly connected to the side of the cross rod 9 near the circular plate 12. A feed inlet 17 is fixedly connected to the inner wall of the right side of the feed shell 4, and a discharge outlet 11 is fixedly connected to the inner wall of the left side of the feed shell 4. A sieve plate 14 and a sieve plate 15 are fixedly connected to the inner wall of the recovery box 1. A screening port 16 is fixedly connected to the inner wall of the front side of the recovery box 1. A scraping mechanism 5 for improving toner recovery is provided on the inner wall of the recovery box 1, and an auxiliary recovery mechanism 6 for cleaning corners is provided on the inner wall of the recovery box 1. The circumferential surface of the reciprocating screw 8 is rotatably connected to the inner wall of the feed shell 4, and the circumferential surface of the circular plate 12 contacts the inner wall of the screening cylinder 10. The circular plate 12 is used to move the screening cylinder... Large pieces of carbon slag are pushed out from inside the 10; the circumferential surface of the limiting rod 13 contacts the inner wall of the circular plate 12, and the limiting rod 13 is used to limit the circular plate 12; the screening cylinder 10 contacts the inner wall of the feed shell 4; the discharge port 11 is used to push out larger pieces of carbon slag; the vibrator 3 is used to drive the screen plate 14 and screen plate 2 15 inside the equipment to vibrate; the inner walls of the screen plate 14 and screen plate 2 15 are provided with screen holes of different sizes for multi-stage screening of carbon powder; the screening port 16 is used to recover the processed carbon powder; and the number of screening ports 16 is set to three for layered discharge of carbon powder of different sizes; the inner wall of the elastic support 2 is provided with springs, which are used to buffer the equipment during operation. While the feed is being rotary screened, the reciprocating screw 8 rotates, driving the circular plate 12 to reciprocate through the reciprocating groove on the circumferential surface. The reciprocating movement of the circular plate 12 pushes larger carbon powder blocks inside the screening cylinder 10 to the discharge ports 11 on both sides of the feed shell 4 for recycling. During recycling, the limiting rod 13 limits the circular plate 12, preventing the reciprocating screw 8 from driving the circular plate 12 to rotate while recycling inside the screening cylinder 10. This improves the stability of recycling, allows more carbon powder to come into contact with the screening cylinder 10 and pass through, thereby improving the overall screening efficiency and preventing excessive fine powder from being generated due to prolonged friction, which would affect the particle size distribution and quality of the carbon powder. This ensures that the quality of the recycled carbon powder is more stable and meets the usage requirements.

[0017] Working principle: During toner processing, the motor 7 drives the screening cylinder 10 to rotate, thereby rotating and screening the toner inside the screening cylinder 10. This allows the toner to be evenly distributed and continuously tumbled on the screening cylinder 10, ensuring full contact with the cylinder and improving screening efficiency. While the feed is being rotated and screened, the reciprocating screw 8 rotates, driving the circular plate 12 to push larger toner blocks inside the screening cylinder 10 to the discharge port 11 for recycling. This allows more toner to come into contact with the screening cylinder 10 and pass through, thereby improving overall screening efficiency.

[0018] Please see Figures 1-8 Based on the above embodiments, in another embodiment of the present invention, the powder scraping mechanism 5 includes a reciprocating screw 53, a gear 52 is fixedly connected to the circumferential surface of the reciprocating screw 53, an elastic telescopic rod 54 is movably connected to the circumferential surface of the reciprocating screw 53, a scraper 55 is fixedly connected to the elastic telescopic end of the elastic telescopic rod 54, and a toothed ring 51 is fixedly connected to the circumferential surface of the screening cylinder 10. While the toner is being rotary screened, the rotating screening cylinder 10 drives the toothed ring 51 to rotate. The rotating toothed ring 51 meshes with the teeth of the gear 52 on its circumferential surface, thereby driving the gear 52 to rotate. The gear 52 drives the reciprocating screw 53 to rotate. The reciprocating screw 53 drives the elastic telescopic rod 54 to reset and move through the reciprocating groove on its circumferential surface. The elastic telescopic rod 54 drives the scraper 55 to move back and forth, thereby recovering the toner adhering to the circumferential surface of the screening cylinder 10. The limiting rod 56 limits the scraper 55 to prevent deviation during recovery, allowing the toner to pass through the screen holes more smoothly. Toner of different particle sizes can be screened more quickly, thereby improving the efficiency of the entire screening process, increasing the throughput per unit time, further improving the toner recovery rate, and extending the service life of the equipment. A limiting rod 56 is fixedly connected to the inner wall of the feed shell 4. A protrusion 57 is fixedly connected to the bottom of the limiting rod 56. A cam 58 is fixedly connected to the circumferential surface of the reciprocating screw 53. The circumferential surface of the reciprocating screw 53 is rotatably connected to the inner wall of the recovery box 1. The circumferential surface of the gear 52 meshes with the circumferential surface of the gear ring 51. The inner wall of the scraper 55 contacts the circumferential surface of the screening cylinder 10. The scraper 55 is used to recover the carbon powder attached to the circumferential surface of the screening cylinder 10. The top of the scraper 55 contacts the bottom of the limiting rod 56. The limiting rod 56 is used to limit the scraper 55. After the scraper 55 moves, it contacts the protrusion 57. While cleaning the circumferential surface of the screening cylinder 10, the scraper 55 moves through the protrusion 57. At this time, the scraper 55 will contact the circumferential surface of the protrusion 57 through the top inclined surface, thereby driving the scraper 55 to move. The movement of the scraper 55 will be retracted through the elastic telescopic end of the elastic telescopic rod 54. When it leaves the protrusion 57, it will return to its original position, thereby causing the scraper 55 to vibrate. This prevents carbon powder from adhering to the surface of the scraper 55. The vibration can make the contact between the scraper 55 and the circumferential surface of the screening cylinder 10 tighter and more uniform, which helps the scraper to more thoroughly remove the carbon powder adhering to the circumferential surface, prevent carbon powder residue, improve cleaning efficiency and quality, and make the scraper 55 move more smoothly, thereby reducing the wear of the scraper 55, extending the service life of the scraper 55, and reducing the maintenance cost of the equipment.

[0019] Working principle: While rotating and screening the toner, the screening cylinder 10 drives the scraper 55 to recover the toner adhering to the circumference of the screening cylinder 10, which further improves the toner recovery rate and extends the service life of the equipment. While cleaning the circumference of the screening cylinder 10, the movement of the scraper 55 will generate vibration through the protrusion 57, preventing toner from adhering to the surface of the scraper 55 and improving cleaning efficiency and quality.

[0020] The auxiliary recycling mechanism 6 includes a sliding rod 61, with telescopic hinge rods 62 hinged to the front and rear sides of the sliding rod 61, and a push scraper 63 hinged to the bottom of the telescopic hinge rod 62. A limit plate 64 is fixedly connected to the inner wall of the recycling box 1. While performing multi-stage screening, the reciprocating screw 53 rotates, driving the cam 58 to rotate. The rotation of the cam 58 moves through the circumferential surface and the sliding rod 61. The sliding rod 61 moves through a spring and slides against the inner wall of the recovery box 1, thus driving the sliding rod 61 to move back and forth. The movement of the sliding rod 61 drives the telescopic hinge rod 62 to move through the hinge point. The movement of the telescopic hinge rod 62 drives the push scraper 63 to gather the unscreened carbon powder on both sides towards the center. The limiting plate 64 limits the push scraper 63, allowing the equipment to perform screening and recovery better, and also allowing the screening port 16 to discharge better, avoiding blind spots during screening. This makes the carbon powder more evenly distributed on the screen surface, allowing more carbon powder to fully contact the screen for screening, reducing the phenomenon of insufficient screening caused by local accumulation of carbon powder, thereby improving screening efficiency, increasing carbon powder recovery rate, and reducing resource waste. A trapezoidal plate 65 is slidably connected to the inner wall of the screening port 16, and a baffle 66 is fixedly connected to the rear side of the trapezoidal plate 65; a sliding rod 61 is slidably connected to the inner wall of the recycling box 1 through a spring, the top of the sliding rod 61 contacts the circumferential surface of the cam 58, the sliding rod 61 contacts the inner wall of the first sieve plate 14, the sliding rod 61 contacts the inner wall of the second sieve plate 15, the push scraper 63 contacts the top of the first sieve plate 14 and the second sieve plate 15 respectively, and the push scraper 63 is used to push the carbon powder on both sides towards the middle, the push scraper 63 contacts the inner wall of the recycling box 1, the bottom of the limiting plate 64 contacts the top of the push scraper 63, and the limiting plate 64 is used to limit the push scraper 63, the baffle 66 is slidably connected to the inner wall of the recycling box 1 through a spring, and the bottom of the trapezoidal plate 65 contacts the top of the push scraper 63; While the material is being gathered, the pusher scraper 63 moves and contacts the bottom inclined surface of the trapezoidal plate 65 through its top inclined surface, thereby driving the trapezoidal plate 65 to move. The trapezoidal plate 65 then drives the baffle 66 to move. When the pusher scraper 63 returns to its original position, the baffle 66 will be reset by a spring, thus achieving intermittent discharge. Intermittent discharge allows the carbon powder to have sufficient time to be fully screened in the screening equipment, preventing some carbon powder from being discharged before it has been screened. This allows the equipment to better adapt to different working conditions and improves its adaptability and flexibility.

[0021] Working principle: While performing multi-stage screening, the cam 58 drives the scraper 63 to gather the unscreened toner powder on both sides towards the center, avoiding blind spots during screening and making the toner powder more evenly distributed on the screen surface, thereby improving screening efficiency, increasing toner powder recovery rate, and reducing resource waste. While gathering the powder, the scraper 63 drives the baffle 66 to move to achieve intermittent discharge. Intermittent discharge allows the toner powder to have sufficient time to be fully screened in the screening equipment, preventing some toner powder from being discharged before it is fully screened. This makes the equipment better adaptable to different working conditions and improves its adaptability and flexibility.

[0022] This invention provides a multi-stage toner recovery device. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment of the invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technologies.

Claims

1. A multi-stage toner recycling device, comprising a recycling bin (1), characterized in that: The bottom of the recycling bin (1) is equipped with an elastic bracket (2), and the bottom of the recycling bin (1) is equipped with a vibrator (3). The top of the recycling bin (1) is fixedly connected to a feed shell (4). The left side of the feed shell (4) is fixedly connected to a motor (7). The output end of the motor (7) is fixedly connected to a reciprocating screw (8). A cross bar (9) is fixedly connected to the circumferential surface of the reciprocating screw (8). A screening cylinder (10) is fixedly connected to the outer surface of the cross bar (9). The reciprocating screw (8)... A circular plate (12) is movably connected to the circumferential surface. A limit rod (13) is fixedly connected to the side of the cross rod (9) near the circular plate (12). A feed inlet (17) is fixedly connected to the right inner wall of the feed shell (4). A discharge outlet (11) is fixedly connected to the left inner wall of the feed shell (4). A sieve plate (14) is fixedly connected to the inner wall of the recycling box (1). A sieve plate (15) is fixedly connected to the inner wall of the recycling box (1). A screening port (16) is fixedly connected to the front inner wall of the recycling box (1). The inner wall of the recycling bin (1) is provided with a scraping mechanism (5) for improving toner recycling, and the inner wall of the recycling bin (1) is provided with an auxiliary recycling mechanism (6) for cleaning corners. The powder scraping mechanism (5) includes a reciprocating screw two (53), a gear (52) is fixedly connected to the circumferential surface of the reciprocating screw two (53), an elastic telescopic rod (54) is movably connected to the circumferential surface of the reciprocating screw two (53), a scraper (55) is fixedly connected to the elastic telescopic end of the elastic telescopic rod (54), and a toothed ring (51) is fixedly connected to the circumferential surface of the screening cylinder (10). The inner wall of the feed shell (4) is fixedly connected to a limiting rod two (56), the bottom of the limiting rod two (56) is fixedly connected to a protrusion (57), and the circumferential surface of the reciprocating screw two (53) is fixedly connected to a cam (58). The auxiliary recycling mechanism (6) includes a sliding rod (61), and telescopic hinge rods (62) are hinged to the front and rear sides of the sliding rod (61). A push scraper (63) is hinged to the bottom of the telescopic hinge rod (62). A limit plate (64) is fixedly connected to the inner wall of the recycling box (1). The inner wall of the screening port (16) is slidably connected to a trapezoidal plate (65), and a baffle (66) is fixedly connected to the rear side of the trapezoidal plate (65). The sliding rod (61) is slidably connected to the inner wall of the recycling box (1) by a spring. The top of the sliding rod (61) is in contact with the circumferential surface of the cam (58). The sliding rod (61) is in contact with the inner wall of the first sieve plate (14). The sliding rod (61) is in contact with the inner wall of the second sieve plate (15). The pusher (63) is in contact with the top of the first sieve plate (14) and the second sieve plate (15) respectively. The pusher (63) is used to push the carbon powder on both sides towards the middle. The pusher (63) is in contact with the inner wall of the recycling box (1). The bottom of the limiting plate (64) is in contact with the top of the pusher (63). The limiting plate (64) is used to limit the pusher (63). The baffle (66) is slidably connected to the inner wall of the recycling box (1) by a spring. The bottom of the trapezoidal plate (65) is in contact with the top of the pusher (63).

2. The multi-stage toner recovery equipment according to claim 1, characterized in that: The circumferential surface of the reciprocating screw (8) is rotatably connected to the inner wall of the feed shell (4), the circumferential surface of the circular plate (12) is in contact with the inner wall of the screening cylinder (10), and the circular plate (12) is used to push out large pieces of carbon slag inside the screening cylinder (10).

3. The multi-stage toner recovery device according to claim 2, characterized in that: The circumferential surface of the limiting rod (13) contacts the inner wall of the circular plate (12), and the limiting rod (13) is used to limit the circular plate (12). The screening cylinder (10) contacts the inner wall of the feed shell (4). The discharge port (11) is used to push out larger carbon slag. The vibrator (3) is used to drive the screen plate (14) and screen plate (15) inside the equipment to vibrate. The inner walls of the screen plate (14) and screen plate (15) are provided with screen holes of different sizes for multi-stage screening of carbon powder. The screening port (16) is used to recycle the processed carbon powder. The number of screening ports (16) is set to three for layered discharge of carbon powder of different sizes. The inner wall of the elastic support (2) is provided with springs, which are used to buffer the equipment during operation.

4. The multi-stage toner recovery device according to claim 3, characterized in that: The circumferential surface of the reciprocating screw (53) is rotatably connected to the inner wall of the recycling box (1), the circumferential surface of the gear (52) meshes with the circumferential surface of the gear ring (51), the inner wall of the scraper (55) contacts the circumferential surface of the screening cylinder (10), and the scraper (55) is used to recycle the carbon powder attached to the circumferential surface of the screening cylinder (10). The top of the scraper (55) contacts the bottom of the limiting rod (56), and the limiting rod (56) is used to limit the scraper (55). After the scraper (55) moves, it contacts the protrusion (57).

Images